Published Paper Details:

The increasing accumulation of plastic waste poses significant environmental challenges, prompting the need for innovative recycling methods. This study investigates the feasibility of using plastic waste as a partial replacement for coarse aggregate in M20 concrete, focusing on its impact on mechanical strength. Various percentages of plastic waste (0%, 5%, 10%, 15%, and 20%) were incorporated into the concrete mix design while maintaining the standard proportions for M20 grade concrete (1:1.5:3). Compressive, split tensile, and flexural strength tests were conducted on concrete samples cured for 7, 14, and 28 days. The results indicated a gradual decline in compressive strength with increasing plastic replacement, with the maximum reduction observed at 20% replacement. However, the concrete with 10% plastic waste replacement demonstrated a balance between reduced strength loss and sustainability benefits, meeting acceptable performance criteria.